viernes, 11 de marzo de 2011

HOMEWORK !!

1.- Which is the formula for the area of a triangle with base b, and height h ?
R= base * height
               2
2.- Write the equation of a straight line with slope m and passing through the point p(Xo , Yo)
R=   Y =  2/Xo   -   X/Xo^2

3.- Calculate the area under the tangent through the point P (1, 1), of the hyperbola.
R=

4.- What is a hyperbola?
R= It´s a conic section

jueves, 10 de marzo de 2011

Exercise 1.                             I, You, He, She, It, We, They

Example:                                a) The book is new
                                                R= It´s new
                                               b) Mr. Thompson works in a bank
                                               R= He works in a bank.

1. - My office is downtown
R= It´s a downtown

2. - Tom has a new radio
R= He´s a new radio.

3. - Miss Johnson and Mrs. Wilson are cousins.
R= They are cousins

4. - Those blue buses go downtown
R=They blue buses go downtown

5. – Philip and John and I are in the same English
R= We are in the same English class.

6.- Miss Johnson comes to class every other day
R= She Comes to class every other day.

7.- Mr. and Mrs. Marshall are Americans.
R= They are Americans

8.- My father and I always go to work on the same bus
R= We go to work on the same bus

9.- Our house isn´t  very  old.
R= It isn´t very old

10.- You and your sister never come to class late.
R= They never come to class late.
                                              
11.- Miss Scott  is nineteen years old
R= She´s nineteen years old

12.- The Anderson children go to class late.
R= He children go to class late.

13.- You and Carl are good English students
R= We are good English students

14.- The teacher often reads aloud in class
R= He often reads aloud class

15,. Mr. Jones isn´t a tall man.
R= He isn´t a tall man.

16.- My sister Mary often fixes supper at our house.
R= She often supper at our house.